src/simgrid/host.cpp

   1 /* Copyright (c) 2013-201. The SimGrid Team.
   2  * All rights reserved.                                                     */
   3
   4 /* This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the license (GNU LGPL) which comes with this package. */
   6
   7 #include <simgrid/simix.hpp>
   8
   9 #include "xbt/dict.h"
  10 #include "simgrid/host.h"
  11 #include "simgrid/Host.hpp"
  12 #include "surf/surf.h" // routing_get_network_element_type FIXME:killme
  13
  14 #include "src/simix/smx_private.hpp"
  15 #include "src/surf/host_interface.hpp"
  16
  17 size_t sg_host_count()
  18 {
  19   return xbt_dict_length(host_list);
  20 }
  21
  22 const char *sg_host_get_name(sg_host_t host)
  23 {
  24         return host->getName().c_str();
  25 }
  26
  27 void* sg_host_extension_get(sg_host_t host, size_t ext)
  28 {
  29   return host->extension(ext);
  30 }
  31
  32 size_t sg_host_extension_create(void(*deleter)(void*))
  33 {
  34   return simgrid::Host::extension_create(deleter);
  35 }
  36
  37 sg_host_t sg_host_by_name(const char *name)
  38 {
  39   return simgrid::Host::by_name_or_null(name);
  40 }
  41
  42 sg_host_t sg_host_by_name_or_create(const char *name)
  43 {
  44   return simgrid::Host::by_name_or_create(name);
  45 }
  46
  47 xbt_dynar_t sg_hosts_as_dynar(void)
  48 {
  49         xbt_dynar_t res = xbt_dynar_new(sizeof(sg_host_t),NULL);
  50
  51   xbt_dict_cursor_t cursor = nullptr;
  52   const char* name = nullptr;
  53   simgrid::Host* host = nullptr;
  54         xbt_dict_foreach(host_list, cursor, name, host)
  55                 if(routing_get_network_element_type(name) == SURF_NETWORK_ELEMENT_HOST)
  56                         xbt_dynar_push(res, &host);
  57         return res;
  58 }
  59
  60 // ========= Layering madness ==============
  61
  62 int MSG_HOST_LEVEL;
  63 int SD_HOST_LEVEL;
  64 int SIMIX_HOST_LEVEL;
  65 int ROUTING_HOST_LEVEL;
  66 int USER_HOST_LEVEL;
  67
  68 #include "src/msg/msg_private.h" // MSG_host_priv_free. FIXME: killme by initializing that level in msg when used
  69 #include "src/simdag/simdag_private.h" // __SD_workstation_destroy. FIXME: killme by initializing that level in simdag when used
  70 #include "src/simix/smx_host_private.h" // SIMIX_host_destroy. FIXME: killme by initializing that level in simix when used
  71 #include "src/surf/cpu_interface.hpp"
  72 #include "src/surf/surf_routing.hpp"
  73
  74 void sg_host_init()
  75 {
  76   MSG_HOST_LEVEL = simgrid::Host::extension_create([](void *p) {
  77     __MSG_host_priv_free((msg_host_priv_t) p);
  78   });
  79
  80   ROUTING_HOST_LEVEL = simgrid::Host::extension_create([](void *p) {
  81           delete static_cast<simgrid::surf::NetCard*>(p);
  82   });
  83
  84   SD_HOST_LEVEL = simgrid::Host::extension_create(__SD_workstation_destroy);
  85   SIMIX_HOST_LEVEL = simgrid::Host::extension_create(SIMIX_host_destroy);
  86   USER_HOST_LEVEL = simgrid::Host::extension_create(NULL);
  87 }
  88
  89 // ========== User data Layer ==========
  90 void *sg_host_user(sg_host_t host) {
  91   return host->extension(USER_HOST_LEVEL);
  92 }
  93 void sg_host_user_set(sg_host_t host, void* userdata) {
  94   host->extension_set(USER_HOST_LEVEL,userdata);
  95 }
  96 void sg_host_user_destroy(sg_host_t host) {
  97   host->extension_set(USER_HOST_LEVEL, nullptr);
  98 }
  99
 100 // ========== MSG Layer ==============
 101 msg_host_priv_t sg_host_msg(sg_host_t host) {
 102         return (msg_host_priv_t) host->extension(MSG_HOST_LEVEL);
 103 }
 104 void sg_host_msg_set(sg_host_t host, msg_host_priv_t smx_host) {
 105   host->extension_set(MSG_HOST_LEVEL, smx_host);
 106 }
 107 void sg_host_msg_destroy(sg_host_t host) {
 108   host->extension_set(MSG_HOST_LEVEL, nullptr);
 109 }
 110 // ========== SimDag Layer ==============
 111 SD_workstation_priv_t sg_host_sd(sg_host_t host) {
 112   return (SD_workstation_priv_t) host->extension(SD_HOST_LEVEL);
 113 }
 114 void sg_host_sd_set(sg_host_t host, SD_workstation_priv_t smx_host) {
 115   host->extension_set(SD_HOST_LEVEL, smx_host);
 116 }
 117 void sg_host_sd_destroy(sg_host_t host) {
 118   host->extension_set(SD_HOST_LEVEL, nullptr);
 119 }
 120
 121 // ========== Simix layer =============
 122 smx_host_priv_t sg_host_simix(sg_host_t host){
 123   return (smx_host_priv_t) host->extension(SIMIX_HOST_LEVEL);
 124 }
 125 void sg_host_simix_set(sg_host_t host, smx_host_priv_t smx_host) {
 126   host->extension_set(SIMIX_HOST_LEVEL, smx_host);
 127 }
 128 void sg_host_simix_destroy(sg_host_t host) {
 129   host->extension_set(SIMIX_HOST_LEVEL, nullptr);
 130 }
 131
 132 // =========== user-level functions ===============
 133 // ================================================
 134
 135 double sg_host_get_available_speed(sg_host_t host){
 136   return surf_host_get_available_speed(host);
 137 }
 138 /** @brief Returns the state of a host.
 139  *  @return 1 if the host is active or 0 if it has crashed.
 140  */
 141 int sg_host_is_on(sg_host_t host) {
 142         return host->pimpl_cpu->isOn();
 143 }
 144
 145 /** @brief Returns the number of power states for a host.
 146  *
 147  *  See also @ref SURF_plugin_energy.
 148  */
 149 int sg_host_get_nb_pstates(sg_host_t host) {
 150   return host->pimpl_cpu->getNbPStates();
 151 }
 152
 153 /** @brief Gets the pstate at which that host currently runs.
 154  *
 155  *  See also @ref SURF_plugin_energy.
 156  */
 157 int sg_host_get_pstate(sg_host_t host) {
 158   return host->getPState();
 159 }
 160 /** @brief Sets the pstate at which that host should run.
 161  *
 162  *  See also @ref SURF_plugin_energy.
 163  */
 164 void sg_host_set_pstate(sg_host_t host,int pstate) {
 165   host->setPState(pstate);
 166 }
 167
 168 namespace simgrid {
 169
 170 Host::Host(std::string const& id)
 171   : name_(id)
 172 {
 173 }
 174
 175 Host::~Host()
 176 {
 177 }
 178
 179 /** Start the host if it is off */
 180 void Host::turnOn()
 181 {
 182   simgrid::simix::kernel(std::bind(SIMIX_host_on, this));
 183 }
 184
 185 /** Stop the host if it is on */
 186 void Host::turnOff()
 187 {
 188   /* Go to that function to follow the code flow through the simcall barrier */
 189   if (0) simcall_HANDLER_host_off(&SIMIX_process_self()->simcall, this);
 190   simgrid::simix::simcall<void>(SIMCALL_HOST_OFF, this);
 191 }
 192
 193 bool Host::isOn() {
 194   return pimpl_cpu->isOn();
 195 }
 196 bool Host::isOff() {
 197   return ! pimpl_cpu->isOn();
 198 }
 199
 200
 201 /** Get the properties assigned to a host */
 202 xbt_dict_t Host::getProperties()
 203 {
 204   return simgrid::simix::kernel(std::bind(sg_host_get_properties, this));
 205 }
 206
 207 /** Get the processes attached to the host */
 208 xbt_swag_t Host::getProcessList()
 209 {
 210   return simgrid::simix::kernel([&]() {
 211     return ((smx_host_priv_t)this->extension(SIMIX_HOST_LEVEL))->process_list;
 212   });
 213 }
 214
 215 /** Get the peak power of a host */
 216 double Host::getCurrentPowerPeak()
 217 {
 218   return simgrid::simix::kernel(
 219     std::bind(surf_host_get_current_power_peak, this));
 220 }
 221
 222 /** Get one power peak (in flops/s) of a host at a given pstate */
 223 double Host::getPowerPeakAt(int pstate_index)
 224 {
 225   return simgrid::simix::kernel(
 226     std::bind(surf_host_get_power_peak_at, this, pstate_index));
 227 }
 228
 229 /** @brief Get the speed of the cpu associated to a host */
 230 double Host::getSpeed() {
 231         return pimpl_cpu->getSpeed(1.0);
 232 }
 233 /** @brief Returns the number of core of the processor. */
 234 int Host::getCoreAmount() {
 235         return pimpl_cpu->getCore();
 236 }
 237
 238 Host* Host::by_name_or_null(const char* name)
 239 {
 240   return (Host*) xbt_dict_get_or_null(host_list, name);
 241 }
 242
 243 Host* Host::by_name_or_create(const char* name)
 244 {
 245   Host* host = by_name_or_null(name);
 246   if (host == nullptr) {
 247     host = new Host(name);
 248     xbt_dict_set(host_list, name, host, NULL);
 249   }
 250   return host;
 251 }
 252
 253 /** @brief Set the pstate at which the host should run */
 254 void Host::setPState(int pstate_index)
 255 {
 256   simgrid::simix::kernel(std::bind(
 257       &simgrid::surf::Cpu::setPState, pimpl_cpu, pstate_index
 258   ));
 259 }
 260 /** @brief Retrieve the pstate at which the host is currently running */
 261 int Host::getPState()
 262 {
 263   return pimpl_cpu->getPState();
 264 }
 265
 266 void Host::getParams(vm_params_t params)
 267 {
 268   simgrid::simix::kernel([&]() {
 269     this->extension<simgrid::surf::Host>()->getParams(params);
 270   });
 271 }
 272
 273 void Host::setParams(vm_params_t params)
 274 {
 275   simgrid::simix::kernel([&]() {
 276     this->extension<simgrid::surf::Host>()->setParams(params);
 277   });
 278 }
 279
 280 /**
 281  * \ingroup simix_storage_management
 282  * \brief Returns the list of storages mounted on an host.
 283  * \return a dict containing all storages mounted on the host
 284  */
 285 xbt_dict_t Host::getMountedStorageList()
 286 {
 287   return simgrid::simix::kernel([&] {
 288     return this->extension<simgrid::surf::Host>()->getMountedStorageList();
 289   });
 290 }
 291
 292 /**
 293  * \ingroup simix_storage_management
 294  * \brief Returns the list of storages attached to an host.
 295  * \return a dict containing all storages attached to the host
 296  */
 297 xbt_dynar_t Host::getAttachedStorageList()
 298 {
 299   return simgrid::simix::kernel([&] {
 300     return this->extension<simgrid::surf::Host>()->getAttachedStorageList();
 301   });
 302 }
 303
 304 }